Ignition device for gas-engines.



F. R. ALLEN.

IGNITION DEVICE FOR GAS ENGINES.

APPLICATION FILED MAR. 31. 1913.

' Patented Apr. 25, 1916.

N SA IES FRANK R. ALLEN, 0F PASSAIC, NEW JERSEY.

IGNITION DEVICE FOR GAS-ENGINES.

App1ication filed March 31, 1913.

To all whom it may concern:

Be it known that I, FRANK R. ALLEN, a citizen of the United States, andresident of the city of Passaic, in the county of Passaic and State ofNew J ersey, have invented certain new and useful Improvements in Ignition Devices for Gas-Engines, of which the following is a specification.

My invention relates to improvements in ignition devices for gas enginesand the object of my invention is to provide a simple and efficientdevice for the purpose of igniting gases which is automatically timed bythe action of the piston.

I accomplish this object by the device illustrated in the accompanyingdrawing in which is shown a vertical section of a piston and cylinderprovided with my improved device.

Similar characters refer to similar parts.

1 is a gas engine cylinder of the usual construction provided with apiston 2 in the usual manner. In the upper face of the piston 2 I seat ablock 3 preferably by means of a screw threaded socket 4 formed in thepiston 2. In the block 3 I provide a contact pin 5 of steel or the like,adapted to strike an ignition block 6 of flint or like material, whichis preferably set in a screw threaded plug 7 extending through the head8 of the cylinder 1. On the plug 7 I provide a finger hold 9 whereby theplug 7 may be removed for the purpose of renewing the ignition block 6.My device being thus assembled the mixture of gas and air is admittedthrough the port 10 to the ignition chamber 11. The raising of thepiston to the maxi mum of its stroke will bring the contact pin 5 intofrictional engagement with the ignition block 6 which, by reason of thesaid parts being of steel and flint or the like will solely through theimpact cause a spark to be produced in the mixture of gas andSpecification of Letters Patent.

Patented Apr, 255, 1916.

Serial No. 757,766.

air thereby exploding the mixture and propelling the piston to theopposite end of the cylinder in the usual well known manner.

I have thus shown and described the preferred form of my device but I donot intend to limit myself to the precise form shown as it is obviousthat changes may be made without departing from my invention which is toprovide in the cylinder of a gas engine at the point where the gaseousmixture is to be exploded to propel the piston, an ignition devicecomprising two materials such as flint and steel or the like which arebrought into frictional contact in the gaseous mixture, by the action ofthe piston.

Having thus described my invention what I claim is:

1. An explosive engine involving a mem her to be operated under theforce of the explosion and an ignition device arranged adjacent saidmember, said ignition device including an element carried by the memberand a second element arranged in the path of movement of the first namedelement, the respective elements being arranged to impact in apredetermined position of. the member to produce by said impact a sparkfor the ignition of the explosive mixture.

A gas engine including a cylinder, a piston therein to be operated underthe force of an explosive mixture, an ignition block adjustablv mountedin the cylind? and a contact carried by the piston to impact theignition block and produce an explosive mixture igniting spark solelythrough said impact.

Signed at the city of Passaic, in the county of Passaic and State of NewJersey this 28th day of March, A. D. 1913.

FRANK R. ALLEN.

Witnesses Lnwrs A. ALLEN, GEORGE M. FoULns.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents,

Washingtonfll G.

